* {
    padding: 0;
    margin: 0;
    font-family: 'Arial';
}

body,
html {
    height: 100%;
    overflow: hidden;
    user-select: none;
}

.section {
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    color: white;
    flex-direction: column;
    font-size: 48px;
    background: url('../images/bj.jpg') no-repeat center center / cover;
}


.btn {
    padding: 12px 20px;
    background: orange;
    color: white;
    border: 1px solid white;
    cursor: pointer;
    margin-top: 30px;
}

.game {
    width: 100%;
    height: 100%;
    background: url('../images/bj.jpg') no-repeat center center / cover;
}

.game>div {
    position: absolute;
}

.player {
    width: 114px;
    height: 93px;
    background: url('../images/p1.png');
    left: 44%;
    bottom: 10px;
}

.enemy {
    width: 125px;
    height: 95px;
    background: url('../images/p.png') no-repeat -117px 0;
    left: 40%;
    top: 50px;
}

.bullet {
    width: 25px;
    height: 86px;
    background: url('../images/bullet.png');
}
.setting{
        width: 200px;
    height: 80px;
    border: 1px solid white;
    bottom: 0;
    text-align: center;
    line-height: 80px;
    font-size: 48px;
    color: white;
}
.score{
    left: 0;
}

.blood-box{
    right: 0;
}

.blood{
    width: 100px;
    height: 80px;
    background: red;
    position: absolute;
    transition: 500ms;
}
.warring{
    transition: 500ms;
    box-shadow: inset 0 0 100px red;
}

.start{
	z-index: 666;
}
.over {
    display: none;
}

